A drill machine made of steel is rotating at the rate of 180 rpm to make a hole on a steel plate. Total mass of the drill and the plate is 180 g. If the whole part of the mechanical energy is converted into heat and if the temperature of the plate rises by 0.5^(@) C, then determine the power of the drill machine and the magnitude of the torque acting. [ Specific heat capacity of steel = 0.10 cal. g^(-1).""^(@)C^(-1)]

A drill machine made of steel is rotating at the rate of 180 rpm to ma

1.	A drill machine made of steel is rotating at the rate of 180 rpm to make a hole on a steel plate. Total mass of the drill and the plate is 180 g. If the whole part of the mechanical energy is converted into heat and if the temperature of the plate rises by 0.5^(@) C, then determine the power of the drill machine and the magnitude of the torque acting. [ Specific heat capacity of steel = 0.10 cal. g^(-1).""^(@)C^(-1)]
Answer» ANSWER :37.8 W, 2.045 N.m